Stop-valve



the nut.

UNITED STATES 'PATENT OFFIoF.

V JAMES FLOIVER, OF DETROIT, MICHIGAN.

STO P-VALVE.

Specification forming part of Letters Patent No. 104,568, dated J une 21, 1870.

provement in Stop-Valve; and I do declare that the following is a true and accurate description thereof, reference being had to the accompanying drawing, and to the letters of this specification, in which- Figure 1 is an elevation of my improved valve, with a portion broken out to show the ulterior construction. Fig. 2 is a vertical section of the same. views of the cage to carry the valves and spindle. Fig. 4 shows two detached views of the loose-iitting ring, tttin g on the spindle under Fig. 5 shows two Vdetached views of the equalizing-bar, whichflts. into each side of the cage.

VLike letters indicate like parts in each iigure.

The nature ofthis invention relates to an improvement in valves for steam, water, gas,

or any uids where a faucet-gate or cock is used; and consists in a pair of iiat metallic valves, fitting loosely in a cage, so that they can revolve freely in the same, closing against two bevel or straight seats inthe shell or box, by means of two equalizing-bars, set loosely in each side of the cage, said cage being operated by a screw in: opening or closing the valves.

y In the accompanying drawing, A represents the 'shell or case of the valve, and is provided with a cap, B, which is screwed to its place, and through which passes the screw C, which is provided with a shoulder, n, and a conical seat, m, ground to a tight iit in the cap B.

D is a metallic ringor follower that is sleeved on the screw-spindle w, and is held firmly in place by the' nut E, and does away with packing the valve-spindle, as the conical seat makes a tight joint.

reference marked thereon, and being a part of Fig.`3 shows two detached4 The steam or water way c a passes through the shell on a line at'right angles with the screw C, and is provided with two iiat seats, F, one being on the inside of each water-way.

In a cavity or chamber, '19, in the shell is the cage G, within which are placed the flat diskvalves It, which are held equally against the spaces of the seats F when closed by means `of the equalizing-bars g. The valve-plates h are tted into the cage so that they will revolve freely. The cage G receives the screw G, which, in raising the valve, passes into the center of the cage and between the valves.

On each side of the cage G is a recess to receive the equalizing-bars g, which compel the valves h to press equally on both faces. In closing the valve it will be observed that with this arrangement of the valve-plates they bear equally upon the seats, and are held rigidly in place when the valves are closed, so that the resistance is positive against pressure on either face of the valves. f

What I claim as my invention, and desire to secure by Letters Patent, is

l. The cage G to receive the valves hand screw C, and provided with recesses to hold the equalizing-bars g, when arranged and operating substantially as herein set forth.v

2. The valves h, when inclosed in the cage G, and operated by the screw O and equalizingbars g, as herein speciiied.

3. The construction of a stop-valve wherein the case A, cap. B, screw G, ring D, nut E, seats F, cage G, water-ways a, valves h, equalizing-bars g, and conical seat m are constructed and arranged substantially as and for the purpose herein described.

JAMEs FLOWER.

Vitnesses JAS. I. DAY, R. C. SMITH. 

